I started playing around with the image extruder in 3D Builder from W10, combined with TCAD, and so far did 2 pieces. They're both from photos. SAM-WILMO is about 4"x5"; with the relief generated in 3D Builder, then combined with the frame built in TCAD. The imported file (either obj or 3ds format) was a surface model, and tricky to work with. IMG1410 is a pick case, designed in TCAD. I used 3D builder to generate the logo relief from a photo, made it taller than I needed so I'd have leeway later when slicing it to the desired thickness, imported it and scaled it to size (zoom XY), then sliced it to desired thickness and added it to the pic case model. NOT...because the model was a solid. Sorry I don't remember exactly, I think the logo wouldn't convert to a solid, so instead, I made the model a surface, which worked fine. Because you can vary the draft of the extrusion in 3DB, I had sloped the sides of the logo before exporting, for a more flowed-on look without beveling the combined model, and to make 3D printing easier. It occurs to me there's more to tell about the printing of this model, and I will. But for now, 3DB has become a useful tool I wanted everyone to know about.